# Cannabis Hyperemesis Syndrome in Young People: What Clinicians and Parents Need to Know > **Author:** Benjamin Caplan, MD (ABFM Board Certified, MA Lic. #240562, NPI: 1962722637) > **Publisher:** CED Clinic (https://cedclinic.com) > **Canonical URL:** https://cedclinic.com/cannabis-hyperemesis-syndrome-clinical-review-youth-2025/ > **Published:** 2026-04-30T01:15:27-04:00 | **Last Modified / Clinically Audited:** 2026-09-28T10:56:29-04:00 > **Clinical Summary:** Explore the cannabis hyperemesis syndrome clinical review focusing on youth, symptoms, diagnosis, and treatment insights for clinicians and parents in 2025. --- By **[Dr. Benjamin Caplan](https://cedclinic.com/cannabis-halloween-safety/), MD**  |  Board-Certified Family Physician, CMO at CED Clinic  |  Evidence Watch Clinical Insight | CED Clinic Cannabis Hyperemesis Syndrome (CHS) is an under-recognized cause of severe, recurrent vomiting in young people who use cannabis heavily and regularly. A new narrative review consolidates available evidence on the condition’s three clinical phases, diagnostic pitfalls, and treatment, but the research base remains thin, built largely on case reports. Stopping [cannabis use](https://cedclinic.com/cannabis-cardiovascular-health-insights-2024/) is the only reliably effective treatment, and clinicians should consider CHS in any young patient presenting with unexplained cyclical vomiting. A new narrative review synthesizes limited but growing evidence on a poorly recognized complication of youth [cannabis use](https://cedclinic.com/cannabis-cardiovascular-health-insights-2024/), examining its three-phase clinical presentation, rising incidence alongside increasing THC potency and legalization, diagnostic challenges, and the urgent need for better clinician and public education to reduce misdiagnosis and delayed care. CED Clinical Relevance #72 Strong Clinical Relevance Directly addresses a condition frequently encountered in cannabis-using youth but widely misdiagnosed; limited by the low quality of underlying evidence. Cannabis Hyperemesis Syndrome Youth Cannabis Use THC Potency Cyclic Vomiting [Public Health](https://cedclinic.com/cannabis-mold-contamination-risks-recall-safety/) Why This Matters Cannabis use among adolescents and young adults is at historically elevated levels in many countries, and the average THC concentration in available products has increased roughly fourfold since the 1980s. CHS remains poorly recognized by emergency physicians, pediatricians, and primary care providers, frequently leading to misdiagnosis as cyclic vomiting syndrome, eating disorders, or other gastrointestinal conditions. These diagnostic delays expose young patients to unnecessary invasive testing, prolonged suffering, and avoidable emergency department visits. Improving clinical awareness of this condition is increasingly urgent as legalization expands access and normalizes use among younger populations. Clinical Summary Cannabis Hyperemesis Syndrome was first described in 2004 and has since emerged as a distinct clinical entity tied to chronic, heavy cannabis use. The condition is thought to arise from prolonged cannabinoid receptor activation in the gastrointestinal tract, disrupting normal motility and emetic regulation. This narrative review examines 13 primary studies published between 2004 and 2024, drawing on PubMed and Google Scholar searches conducted from October 2024 through March 2025. The included literature spans six case reports, three case series, one randomized controlled trial, one longitudinal analysis, one repeated cross-sectional study, and one qualitative investigation. The review organizes its findings across six thematic areas: clinical presentation, diagnosis, treatment, youth-specific vulnerability, the role of increasing THC potency, and [public health](https://cedclinic.com/cannabis-mold-contamination-risks-recall-safety/) implications. The review describes CHS as progressing through three identifiable phases: a prodromal phase marked by early morning nausea that patients often self-treat with additional cannabis; a hyperemetic phase involving severe, protracted vomiting, dehydration, electrolyte disturbances, and the characteristic compulsion to take hot showers or baths for temporary relief; and a recovery phase in which symptoms resolve following cannabis cessation. A referenced systematic review identified only 24 adolescent CHS patients across 21 studies, underscoring the critically thin evidence base for this age group. An Ontario-based observational study found a 60% higher rate of CHS-related emergency visits post-legalization (IRR 1.60, 95% CI 1.19 to 2.16). Cannabis cessation remains the only definitive treatment, with topical capsaicin offered as a symptomatic adjunct. The authors recommend improved provider education, school-based prevention programs, and targeted public health campaigns, though these recommendations rest on expert synthesis rather than intervention trials. Dr. Caplan’s Take This review does an important service by consolidating what we know about CHS in young people into a single, readable document. The clinical phasing is accurate and clinically useful, and the emphasis on misdiagnosis resonates with what I see regularly. Where I would urge caution is in the gap between the review’s advocacy tone and the reality of the evidence underneath it. Thirteen studies, most of them case reports involving handfuls of patients, cannot support population-level claims about incidence trends or the causal role of legalization. The Ontario emergency department data are suggestive but represent a single jurisdiction and a correlational finding. In practice, I see CHS-like presentations with some regularity among young patients who use cannabis daily. The conversation I find most productive is not about fear or prohibition but about frequency and dose. I counsel patients directly that daily, high-potency use carries real gastrointestinal risk, and I make sure they understand that hot showers providing temporary relief is a red flag, not a solution. When a patient is willing to try a structured cannabis holiday, we track symptoms closely. For those who are not ready to stop, [harm reduction](https://cedclinic.com/can-you-mix-weed-and-alcohol/) through lower-potency products and reduced frequency is a practical starting point, even though the evidence for partial dose reduction in CHS is essentially nonexistent. Clinical Perspective This review sits at an early point in the research arc for CHS in youth. The syndrome itself is well-described clinically, but the pediatric and adolescent literature remains dominated by case-level evidence. We do not yet have prospective cohort data, validated screening tools, or dose-response curves that would allow clinicians to identify which young users are at highest risk. The observation that females may be disproportionately represented among adolescent CHS cases is intriguing but is drawn from a systematic review of only 24 patients and cannot be considered reliable. Clinicians should recognize CHS as a diagnosis of exclusion that becomes more likely when a young patient with heavy cannabis use presents with cyclical vomiting, early morning nausea, and relief from hot bathing, but should still complete appropriate workup for other etiologies. From a pharmacological standpoint, the review highlights topical capsaicin cream applied to the abdomen as an [https://cedclinic.com/contact/](https://cedclinic.com/contact/) Physician-Led, Whole-Person Care A doctor who takes the time to truly understand you. Personal care that starts with listening and is guided by experience and ingenuity. Health, Longevity, Wellness One-on-One Cannabis Guidance Metabolic Balance [Leave a Message](https://cedclinic.com/contact/) [Metabolic Care](https://cedclinic.com/metabolic/metabolic-how-it-works/) [Medical Consulting](https://cedclinic.com/book/) [Cannabis Care](https://cedclinic.com/book/) [https://cedclinic.com/contact/](https://cedclinic.com/contact/) RELATED READING AT CED CLINIC Continue exploring the evidence [Cannabis hyperemesis syndrome is on the rise: What symptoms to watch for – KGET.com](https://cedclinic.com/cannabis-hyperemesis-syndrome-clinical-overview/) Learn about the increasing incidence of cannabis hyperemesis syndrome and the key symptoms to recognize for early intervention. [Read More](https://cedclinic.com/cannabis-hyperemesis-syndrome-clinical-overview/) [Screaming, vomiting, and daily weed: The rise of 'scromiting' among chronic cannabis users](https://cedclinic.com/cannabinoid-hyperemesis-syndrome-clinical-overview/) Explore the phenomenon of 'scromiting' and its connection to [chronic cannabis use](https://cedclinic.com/cannabis-tolerance-behavioral-models/), highlighting clinical challenges. [Discover More](https://cedclinic.com/cannabinoid-hyperemesis-syndrome-clinical-overview/) [Cannabis Hyperemesis Syndrome in Youth: A Narrative Review Highlights Clinical Gaps and Public Health Urgency](https://cedclinic.com/cannabis-hyperemesis-syndrome-youth-review/) A detailed narrative review emphasizing clinical gaps and the urgent need for public health awareness on youth CHS. [Learn More](https://cedclinic.com/cannabis-hyperemesis-syndrome-youth-review/) Have thoughts on this? 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